/* ========================================
   TaskForge - Design System & Styles
   ======================================== */

:root {
  /* Backgrounds */
  --bg-primary: #06060b;
  --bg-secondary: #0c0c14;
  --bg-tertiary: #12121e;
  --bg-card: #14142280;
  --bg-card-hover: #1a1a2a;
  --bg-input: #0e0e18;
  --bg-overlay: rgba(6, 6, 11, 0.85);

  /* Borders */
  --border-subtle: rgba(255,255,255,0.06);
  --border-default: rgba(255,255,255,0.1);
  --border-hover: rgba(255,255,255,0.15);
  --border-accent: rgba(0, 212, 255, 0.3);

  /* Text */
  --text-primary: #e8e8f0;
  --text-secondary: #8888a0;
  --text-tertiary: #555570;
  --text-accent: #00d4ff;

  /* Accents */
  --accent-cyan: #00d4ff;
  --accent-amber: #ff9f1c;
  --accent-red: #ff4757;
  --accent-green: #2ed573;
  --accent-purple: #a855f7;

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  /* Sidebar */
  --sidebar-width: 260px;
}

/* Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-display);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Grid pattern overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.2);
}

/* ========================================
   Layout
   ======================================== */
#app {
  display: flex;
  height: 100vh;
  position: relative;
  z-index: 1;
}

/* ========================================
   Sidebar
   ======================================== */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-logo {
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.logo-icon {
  font-size: 23px;
  filter: drop-shadow(0 0 6px rgba(0,212,255,0.4));
}

.logo-text {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--accent-cyan);
}

.sidebar-section {
  padding: 20px 20px 8px;
}

.sidebar-section-title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

.project-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 8px;
}

.project-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s;
  position: relative;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 15px;
}

.project-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.project-item.active {
  background: rgba(0, 212, 255, 0.06);
  color: var(--text-primary);
}

.project-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--accent-cyan);
  border-radius: 0 2px 2px 0;
}

.project-item.dragging {
  opacity: 0.4;
}

.project-item.drag-over-above {
  box-shadow: 0 -2px 0 0 var(--accent-cyan);
}

.project-item.drag-over-below {
  box-shadow: 0 2px 0 0 var(--accent-cyan);
}

.project-name-input {
  flex: 1;
  min-width: 0;
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-accent);
  border-radius: 4px;
  padding: 2px 6px;
  outline: none;
}

.project-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.project-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 8px;
}

.new-project-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 12px 12px 0;
  padding: 10px;
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-sm);
  background: none;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 15px;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.new-project-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.04);
}

.new-project-icon {
  font-size: 18px;
  font-weight: 300;
}

/* Sidebar overlay (mobile) */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  z-index: 99;
}

.sidebar-overlay.active {
  display: block;
}

/* ========================================
   Main Content
   ======================================== */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* ========================================
   Header
   ======================================== */
.header {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-subtle);
  gap: 16px;
  flex-shrink: 0;
  background: var(--bg-secondary);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-btn span {
  width: 18px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: background 0.15s;
}

.menu-btn:hover span {
  background: var(--text-primary);
}

.project-title {
  font-size: 21px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-center {
  flex-shrink: 0;
}

.view-toggle {
  display: flex;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  padding: 3px;
  border: 1px solid var(--border-subtle);
}

.view-toggle-btn {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 5px 14px;
  border: none;
  border-radius: 4px;
  background: none;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all 0.15s;
}

.view-toggle-btn:hover {
  color: var(--text-secondary);
}

.view-toggle-btn.active {
  background: var(--accent-cyan);
  color: #06060b;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 10px;
  font-size: 15px;
  opacity: 0.4;
  pointer-events: none;
}

.search-input {
  font-family: var(--font-display);
  font-size: 15px;
  padding: 7px 12px 7px 32px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  width: 180px;
  transition: all 0.2s;
}

.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-input:focus {
  border-color: var(--border-accent);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
  width: 220px;
}

/* Buttons */
.btn-primary {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 9px 18px;
  background: var(--accent-cyan);
  color: #06060b;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn-primary:hover {
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.15);
  filter: brightness(1.1);
}

.btn-primary.btn-sm {
  padding: 7px 14px;
  font-size: 12px;
}

.btn-secondary {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  padding: 9px 18px;
  background: none;
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

/* ========================================
   Board View
   ======================================== */
.board-view {
  flex: 1;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 20px;
}

.columns-container {
  display: flex;
  gap: 16px;
  height: 100%;
  align-items: flex-start;
}

.column {
  width: 300px;
  min-width: 300px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  max-height: 100%;
}

.column.drag-over {
  border-color: var(--accent-cyan);
  box-shadow: inset 0 0 20px rgba(0, 212, 255, 0.05);
}

.column-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.column-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.column-title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  padding: 2px 4px;
  margin: -2px -4px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}

.column-title:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.column-title-input {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-accent);
  border-radius: 4px;
  padding: 2px 6px;
  outline: none;
  flex: 1;
  min-width: 0;
}

.column-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: 2px 7px;
  border-radius: 8px;
  flex-shrink: 0;
}

.column-menu-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 18px;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  opacity: 0;
  transition: all 0.15s;
  flex-shrink: 0;
  line-height: 1;
}

.column-header:hover .column-menu-btn {
  opacity: 1;
}

.column-menu-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.column-cards {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.column-footer {
  padding: 8px 10px 12px;
  flex-shrink: 0;
}

.add-task-col-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 9px;
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-sm);
  background: none;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.15s;
}

.add-task-col-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Add column button */
.add-column-btn {
  min-width: 200px;
  height: 138px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-lg);
  background: none;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.add-column-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.03);
}

/* ========================================
   Task Card
   ======================================== */
.task-card {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 14px 14px 18px;
  cursor: pointer;
  transition: all 0.2s;
  animation: fadeInUp 0.2s ease;
}

.task-card:hover {
  transform: translateY(-1px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

.task-card[draggable="true"] {
  cursor: grab;
}

.task-card.dragging {
  opacity: 0.4;
}

/* Priority bar */
.task-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 0 2px 2px 0;
}

.task-card[data-priority="urgent"]::before { background: var(--accent-red); }
.task-card[data-priority="high"]::before { background: var(--accent-amber); }
.task-card[data-priority="medium"]::before { background: var(--accent-cyan); }
.task-card[data-priority="low"]::before { background: var(--accent-green); }
.task-card[data-priority="none"]::before { background: var(--text-tertiary); }

.task-card-top {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.task-checkbox {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--border-default);
  border-radius: 4px;
  background: none;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  transition: all 0.15s;
  color: transparent;
  font-size: 11px;
  padding: 0;
  line-height: 1;
}

.task-checkbox:hover {
  border-color: var(--accent-cyan);
}

.task-checkbox.checked {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: #06060b;
}

.task-card-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
  flex: 1;
  word-break: break-word;
}

.task-card.completed .task-card-title {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

/* Task meta row */
.task-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.task-meta-item {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 3px;
}

.task-meta-item.due-soon {
  color: var(--accent-amber);
}

.task-meta-item.overdue {
  color: var(--accent-red);
}

/* Tags in card */
.task-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 3px 9px;
  border-radius: 10px;
  white-space: nowrap;
}

/* Assignee avatars */
.task-assignees {
  display: flex;
  margin-top: 10px;
}

.avatar {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: #fff;
  border: 2px solid var(--bg-secondary);
  margin-left: -4px;
  flex-shrink: 0;
}

.avatar:first-child {
  margin-left: 0;
}

.avatar-overflow {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  font-size: 9px;
}

/* Inline add task input */
.inline-add-input {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-display);
  font-size: 15px;
  background: var(--bg-input);
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.inline-add-input::placeholder {
  color: var(--text-tertiary);
}

/* ========================================
   List View
   ======================================== */
.list-view {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.list-container {
  max-width: 960px;
  margin: 0 auto;
}

.list-group {
  margin-bottom: 16px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.list-group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: background 0.15s;
  border: none;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 16px;
}

.list-group-header:hover {
  background: var(--bg-tertiary);
}

.list-group-arrow {
  font-size: 12px;
  color: var(--text-tertiary);
  transition: transform 0.2s;
  flex-shrink: 0;
  width: 16px;
  text-align: center;
}

.list-group.collapsed .list-group-arrow {
  transform: rotate(-90deg);
}

.list-group.collapsed .list-group-body {
  display: none;
}

.list-group-name {
  font-weight: 600;
  flex: 1;
}

.list-group-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
}

.list-group-body {
  border-top: 1px solid var(--border-subtle);
}

.list-row {
  display: grid;
  grid-template-columns: 32px 1fr 100px 90px 90px 130px;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background 0.1s;
}

.list-row:last-child {
  border-bottom: none;
}

.list-row:hover {
  background: var(--bg-tertiary);
}

.list-row-title {
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.list-row.completed .list-row-title {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

.list-row-due {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  text-align: right;
}

.list-row-due.due-soon {
  color: var(--accent-amber);
}

.list-row-due.overdue {
  color: var(--accent-red);
}

.list-row-priority {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 10px;
  text-align: center;
  white-space: nowrap;
}

.list-row-priority[data-priority="urgent"] {
  background: rgba(255, 71, 87, 0.15);
  color: var(--accent-red);
}
.list-row-priority[data-priority="high"] {
  background: rgba(255, 159, 28, 0.15);
  color: var(--accent-amber);
}
.list-row-priority[data-priority="medium"] {
  background: rgba(0, 212, 255, 0.15);
  color: var(--accent-cyan);
}
.list-row-priority[data-priority="low"] {
  background: rgba(46, 213, 115, 0.15);
  color: var(--accent-green);
}
.list-row-priority[data-priority="none"] {
  background: rgba(85, 85, 112, 0.15);
  color: var(--text-tertiary);
}

.list-row-assignees {
  display: flex;
  justify-content: center;
}

.list-row-tags {
  display: flex;
  gap: 4px;
  overflow: hidden;
}

.list-add-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 18px;
  width: 100%;
  background: none;
  border: none;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.15s;
}

.list-add-btn:hover {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.03);
}

/* ========================================
   Detail Panel
   ======================================== */
.detail-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  z-index: 200;
}

.detail-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 480px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-subtle);
  z-index: 201;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.detail-panel.visible {
  transform: translateX(0);
}

.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.detail-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.detail-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 25px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: color 0.15s;
}

.detail-close:hover {
  color: var(--text-primary);
}

.detail-parent-link {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-cyan);
  cursor: pointer;
  transition: opacity 0.15s;
}

.detail-parent-link:hover {
  opacity: 0.8;
}

.detail-header-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.detail-icon-btn {
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  padding: 6px 8px;
  transition: all 0.15s;
  line-height: 1;
}

.detail-icon-btn:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.detail-delete-btn:hover {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

.detail-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.detail-title {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 600;
  background: none;
  border: none;
  color: var(--text-primary);
  width: 100%;
  outline: none;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 16px;
}

.detail-title::placeholder {
  color: var(--text-tertiary);
}

.detail-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.detail-field {
  margin-bottom: 16px;
}

.detail-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.detail-select,
.detail-input {
  font-family: var(--font-display);
  font-size: 15px;
  padding: 9px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  width: 100%;
  outline: none;
  transition: border-color 0.15s;
}

.detail-select:focus,
.detail-input:focus {
  border-color: var(--border-accent);
}

.detail-select option {
  background: var(--bg-secondary);
}

.detail-textarea {
  font-family: var(--font-display);
  font-size: 15px;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  width: 100%;
  outline: none;
  resize: vertical;
  min-height: 80px;
  transition: border-color 0.15s;
}

.detail-textarea:focus {
  border-color: var(--border-accent);
}

.detail-textarea::placeholder {
  color: var(--text-tertiary);
}

/* Detail assignees */
.detail-assignees {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.detail-assignee {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-tertiary);
  border-radius: 20px;
  padding: 4px 8px 4px 4px;
}

.detail-assignee .avatar {
  width: 23px;
  height: 23px;
  font-size: 9px;
  border: none;
  margin-left: 0;
}

.detail-assignee-name {
  font-size: 14px;
  color: var(--text-secondary);
}

.detail-assignee-remove {
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 16px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
}

.detail-assignee-remove:hover {
  color: var(--accent-red);
}

/* Detail tags */
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.detail-tag {
  display: flex;
  align-items: center;
  gap: 4px;
}

.detail-tag .tag {
  display: flex;
  align-items: center;
  gap: 4px;
}

.tag-remove {
  background: none;
  border: none;
  color: inherit;
  opacity: 0.6;
  font-size: 14px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.tag-remove:hover {
  opacity: 1;
}

.detail-add-row {
  display: flex;
  gap: 8px;
}

.detail-add-input {
  flex: 1;
}

/* Detail subtasks */
.detail-subtasks {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}

.detail-subtask {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.1s;
}

.detail-subtask:hover {
  background: var(--bg-card-hover);
}

.detail-subtask .task-checkbox {
  width: 16px;
  height: 16px;
  font-size: 9px;
}

.detail-subtask-title {
  font-size: 15px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.detail-subtask.completed .detail-subtask-title {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

.detail-max-depth {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  padding: 8px 0;
  letter-spacing: 1px;
}

/* Detail comments */
.detail-comments {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 12px;
}

.comment {
  display: flex;
  gap: 10px;
}

.comment .avatar {
  width: 32px;
  height: 32px;
  font-size: 11px;
  border: none;
  margin-left: 0;
  flex-shrink: 0;
}

.comment-body {
  flex: 1;
  min-width: 0;
}

.comment-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 2px;
}

.comment-author {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.comment-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
}

.comment-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.detail-comment-input-row {
  display: flex;
  gap: 8px;
}

.detail-comment-input-row .detail-input {
  flex: 1;
}

/* ========================================
   Project Modal
   ======================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 440px;
  max-width: calc(100vw - 32px);
  animation: scaleIn 0.2s ease;
}

.modal-title {
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 20px;
}

.modal-field {
  margin-bottom: 16px;
}

.color-picker {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.color-option {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  padding: 0;
  background: none;
}

.color-option:hover {
  transform: scale(1.1);
}

.color-option.selected {
  border-color: #fff;
  box-shadow: 0 0 12px var(--glow-color, rgba(255,255,255,0.2));
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
}

/* ========================================
   Context Menu
   ======================================== */
.context-menu {
  position: fixed;
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 4px;
  min-width: 180px;
  z-index: 400;
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}

.context-menu-item {
  display: block;
  width: 100%;
  padding: 9px 14px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 15px;
  text-align: left;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.1s;
}

.context-menu-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.context-menu-danger {
  color: var(--accent-red);
}

.context-menu-danger:hover {
  background: rgba(255, 71, 87, 0.1);
  color: var(--accent-red);
}

.context-menu-separator {
  height: 1px;
  background: var(--border-subtle);
  margin: 4px 8px;
}

.context-menu-icon {
  display: inline-block;
  width: 20px;
  font-size: 14px;
  text-align: center;
  flex-shrink: 0;
}

.context-menu-item.has-submenu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  cursor: pointer;
  padding: 9px 14px;
  border-radius: 4px;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 15px;
  transition: all 0.1s;
}

.context-menu-item.has-submenu:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.context-menu-arrow {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-left: 12px;
}

.context-menu-submenu {
  display: none;
  position: absolute;
  left: 100%;
  top: -4px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 4px;
  min-width: 150px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
  z-index: 401;
}

.context-menu-item.has-submenu:hover > .context-menu-submenu {
  display: block;
}

.context-menu-submenu .context-menu-item {
  white-space: nowrap;
}

.priority-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
  flex-shrink: 0;
}

.context-menu-item.active-priority {
  color: var(--accent-cyan);
}

/* ========================================
   Toast
   ======================================== */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  max-width: 360px;
  font-size: 15px;
  color: var(--text-primary);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  animation: slideInRight 0.25s ease;
  border-left: 3px solid var(--accent-cyan);
}

.toast.success { border-left-color: var(--accent-green); }
.toast.error { border-left-color: var(--accent-red); }
.toast.info { border-left-color: var(--accent-cyan); }

/* ========================================
   FAB (Mobile)
   ======================================== */
.fab {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent-cyan);
  color: #06060b;
  font-size: 32px;
  font-weight: 300;
  border: none;
  cursor: pointer;
  z-index: 50;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
  transition: all 0.2s;
  line-height: 1;
}

.fab:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 28px rgba(0, 212, 255, 0.4);
}

/* ========================================
   Empty State
   ======================================== */
.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
}

.empty-state-icon {
  font-size: 55px;
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state h2 {
  font-size: 21px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.empty-state p {
  font-size: 15px;
}

/* ========================================
   Utilities
   ======================================== */
.hidden {
  display: none !important;
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ========================================
   Responsive
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
  .column {
    width: 280px;
    min-width: 280px;
  }

  .search-input {
    width: 140px;
  }

  .search-input:focus {
    width: 180px;
  }
}

/* Large desktop */
@media (min-width: 1400px) {
  .column {
    width: 340px;
    min-width: 340px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    transform: translateX(-100%);
    z-index: 100;
    box-shadow: 4px 0 20px rgba(0,0,0,0.3);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .menu-btn {
    display: flex;
  }

  .header {
    padding: 0 12px;
    gap: 8px;
  }

  .header-center {
    display: none;
  }

  .search-wrapper {
    display: none;
  }

  .header-right .btn-primary {
    display: none;
  }

  .fab {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .board-view {
    padding: 12px;
  }

  .column {
    width: 85vw;
    min-width: 85vw;
  }

  .detail-panel {
    width: 100vw;
  }

  .list-row {
    grid-template-columns: 32px 1fr 80px;
  }

  .list-row-priority,
  .list-row-assignees,
  .list-row-tags {
    display: none;
  }

  .project-title {
    font-size: 17px;
  }

  .toast-container {
    left: 12px;
    right: 12px;
    bottom: 80px;
  }

  .toast {
    max-width: 100%;
  }
}